An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.
Classification: Thrust ball bearings
NSN 5925-00-472-1371
NSN 5965-01-135-7910
NSN 5925-01-300-1522
NSN 5935-01-151-2796
NSN 6135-01-255-9129
NSN 6620-00-712-4431
NSN 2925-01-446-0525
NSN 5855-01-308-0955
NSN 6150-01-557-3053
NSN 5910-00-162-8763
NSN 5990-00-258-0228
NSN 5855-00-944-0949